2003 Cadillac Escalade Owner's Manual - Page 187

A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check your oil as soon as possible. See DlC Warnings and Messages on page 3-56. Security Light This light will come on briefly when you turn the key toward START. The light will stay on until the engine starts. 1 Don't keep driving if the oil pressure is low. If you do, your engine can become so hot that it catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. If the light flashes, the Passlock@ system has entered a tamper mode. If the vehicle fails to start, see Passlock@ on page 2-17. If the light comes on continuously while driving and stays on, there may be a problem with the Passlock@ system. Your vehicle will not be protected by Passlock@, and you should see your dealer. Also, see Content Theft-Deterrent on page 2-16 for additional information regarding the security light. Notice: Damage to your engine from neglected oil problems can be costly andis not covered by your warranty. 3-44